EP4051570A1 - Wassersportgerät - Google Patents
WassersportgerätInfo
- Publication number
- EP4051570A1 EP4051570A1 EP20811528.7A EP20811528A EP4051570A1 EP 4051570 A1 EP4051570 A1 EP 4051570A1 EP 20811528 A EP20811528 A EP 20811528A EP 4051570 A1 EP4051570 A1 EP 4051570A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water sports
- sports device
- propulsion
- water
- wing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
- B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
- B63B1/244—Safety systems, e.g. when striking an object
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
- B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
- B63B1/28—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
- B63B1/30—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils retracting or folding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/10—Motor-propelled water sports boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
- B63B32/64—Adjustable, e.g. by adding sections, by removing sections or by changing orientation or profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
- B63H11/107—Direction control of propulsive fluid
- B63H11/117—Pivoted vane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/18—Improving safety of vessels, e.g. damage control, not otherwise provided for preventing collision or grounding; reducing collision damage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
- B63H2011/081—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with axial flow, i.e. the axis of rotation being parallel to the flow direction
Definitions
- the present invention relates to a water sports device, in particular a foil board, with a floating body, preferably in the form of a swimming board, and a propulsion device provided for propelling the water sports device.
- Such a water sports device is designed as a foil board in particular when the floating body is designed as a swimming board and it has at least one wing device with at least one wing, in particular with at least two wings.
- Such water sports equipment are regularly used to move people who are on the side of the float facing away from the Trag direvorrich device, over water.
- the wing device is regularly arranged below the water surface.
- a wing device which, due to the foil used, requires a sufficiently deep body of water, since the wing device otherwise touches the ground and is either damaged or folded down. Areas of a body of water that are regularly removed from a bank or beach are therefore necessary for use.
- the object of the present invention is to make such a water sports device easier to use or easier to learn.
- the object according to the invention is achieved in that the water sports device and in particular the propulsion device are designed for automatic self-stabilization of the water sports device and the water sports device has a control unit provided for this purpose.
- Advantageous embodiments of the invention can be found in the dependent claims and the description below.
- the water sports device is comparatively unstable in a position at a distance from the water surface, in particular when accelerating and / or when cornering.
- the water sports equipment is controlled by shifting the user's body weight or, if the water sports equipment is controlled externally, the user's body weight must be shifted in order to remain on the water sports equipment and prevent the water sports equipment from tipping over.
- a water sports device designed for self-stabilization can support a user of such a water sports device or make it easier to learn how to use a corresponding water sports device if there is initially strong support and this support is gradually reduced.
- the water sports device according to the invention has an active stabilization for this purpose, in which the control unit provides control signals for actuators of the water sports device, with actuators being active adjusting means.
- actuators can be a motor of the Propulsion device, adjustable flaps or nozzles or adjustable fins, rudders, wings or individual adjustable sections thereof.
- input variables such as data on the position of the water sports device, power of the propulsion device, speed, acceleration and / or user inputs are evaluated and control commands for an actuator or several actuators are generated.
- the water sports device stabilizes itself when the control commands generated by the control unit cause the water sports device to move into a stable position. In the stable position, the user of the water sports device can use it without running the risk of falling off the water sports device. Even self-stabilizing water sports equipment can capsize, get under the water or the user can fall off if the transition to an unstable state occurs too quickly or the possibilities of the water sports equipment for self-stabilization are exceeded. This is the case, for example, when the necessary adjustment of an actuator is greater than the available adjustment range.
- the stable position of the water sports device can be a stable equilibrium position of the non-actively stabilized system made up of the water sports device and the user.
- active stabilization only needs to take place when the limit to return to stable equilibrium has been exceeded.
- it can also be an unstable equilibrium position of the not actively stabilized system or an equilibrium position of the actively stabilized system.
- permanent intervention by the tax authorities is essential. This is necessary to keep the system consisting of the water sports equipment and the user in a stable position.
- the system can also have more than one stable position.
- the water sports device is thus actively stabilized by adjusting the actuating elements and / or influencing the signals determining the propulsion.
- the floating body is in particular a flat, elongated body, the density of which is well below that of water.
- the float is in particular designed in such a way that, during operation, it is preferably arranged, regardless of travel speed, in any case partially above the surface of the water.
- the holding device extends from the float to the Trag vomvorrich device below the float. A buoyancy force generated by the wing device is transmitted to the float through the holding device.
- the wing device is preferably provided, at least in the operating position, with at least one wing which is flat and preferably at least partially wing-shaped or fin-shaped.
- the width of the wing device measured transversely to the direction of travel, is in particular at most twice as large as the width of the floating body.
- the wing device is used to stabilize the ride with the water sports device and to generate buoyancy there, with the wing device to reinforce these effects preferably having wing ends that are angled with respect to the essentially flat water surface.
- the water sports device furthermore has, in particular, a plurality of spaced apart from one another in the direction of travel and / or at different distances from the floating body Wings.
- the wing device thus comprises at least one wing and its holder and optionally a propulsion device.
- the at least one link is designed in particular as a rigid strut.
- the handlebar is pivotably mounted relative to the float and / or relative to the wing device.
- the at least one first link is movably translationally movable relative to the floating body and / or relative to the wing device, in particular displaceably mounted.
- the Trag lakevor direction is particularly indirectly, via other components such as handlebars, or directly coupled to the first handlebar.
- a handlebar is generally referred to as a movably and in particular articulated, but otherwise rigid, solid or hollow rod component, for example, via which parts of the water sports device can be moved relative to one another, possibly in combination with one or more other handlebars.
- the holding device preferably has handlebars which can be pivoted relative to one another and / or can be displaced within or against one another and thus e.g.
- the automatic self-stabilization is preferably carried out by the Vortriebsvor direction, which is designed for in particular automatic thrust control, further in particular for automatic thrust vector control.
- a thrust control the thrust of the propulsion device can be adapted to the current state of stability of the water sports device.
- the thrust is adjusted automatically by means of control commands determined by the control unit. These are generated based on sensor data. If the water sports device is to travel faster, but the user is in the back position and the water sports device threatens to become unstable as a result, the propulsion device will automatically reduce the thrust. Likewise, a reduction in thrust can be automatically stopped or reversed during braking if the user has shifted his weight too far forward and there is a risk of instability or the water sports equipment tipping over.
- an increased thrust can also compensate for a forward shift in weight and vice versa.
- a thrust vector control is particularly advantageous.
- not only the amount of thrust, but also the direction in which the thrust follows, can be influenced.
- instabilities caused by external forces such as waves or wind forces acting on the side can be compensated for.
- the additional degree of freedom of the automatic thrust vector control enables a more sensitive self-stabilization of the water sports equipment.
- the propulsion device particularly preferably has a vector nozzle.
- the vector nozzle is arranged in such a way that the drive jet of accelerated liquid generated by the propulsion device flows through it. It is preferably arranged in front of the rear end of the propulsion device.
- the direction in which the drive jet points can be freely aligned, preferably within a cone adjoining the end of the propulsion device. The direction of the drive jet can be freely adjusted within this cone, thus stabilizing the water sports equipment.
- the control unit is preferably designed for the preferably multiaxial stabilization of the floating body during the transition into the operating position and / or in the operating position.
- Such a stabilization can thus compensate for immersion in the direction of travel forwards or backwards, for example as a result of weight shifts by the user or insufficient weight shifting of the user, as well as shifts around a longitudinal axis that can occur, for example, when cornering or even with careless shifts the body weight of a user or if the body weight of the user has not shifted, but not less.
- these disturbances of the stable state can be addressed at the same time.
- the propulsion device has a pivotably arranged propeller.
- This propeller which is preferably pivotable about two spatial axes, makes it possible, similar to the vector nozzle, to set the direction in which a driving force acts. In this way, the self-stabilization of the water sports device according to the invention can be achieved or supported.
- the propulsion device preferably has at least one pivotable guide vane.
- the guide vane is preferably arranged at the end of the propulsion device behind a propeller and / or impeller.
- the drive jet of the propulsion device generated by the propeller or impeller can be aligned by the guide vane.
- At least two pivotable guide vanes are preferably provided, which are arranged at a 90 ′′ angle to one another and preferably penetrate one another in order to allow controllability in at least two spatial directions receive.
- at least four guide vanes are provided, which are arranged in a cross shape, the arms of the cross located next to one another each forming 90 ”angles.
- control can take place around a longitudinal axis or roll axis running through the propulsion device, which enables controllability around three spatial axes. This can help stabilize the water sports equipment, especially when cornering.
- the propulsion device preferably has a plurality of nozzles pointing in different directions. These nozzles can either be movable themselves or be arranged rigidly.
- a propulsion jet generated by a propeller or preferably by an impeller is ejected through the nozzles, whereby the portion of the propulsion jet ejected by individual nozzles can be varied via control elements such as flaps or valves.
- the nozzles can be arranged in such a way that when the drive jet is ejected evenly through all nozzles, a neutral, forward-directed propulsive force results. With a variation of the propulsion jet ejected by the individual nozzles, forces and / or torques can thus be applied to the water sports device in certain directions, which can be used to stabilize the water sports device.
- the water sports device preferably has at least one sensor, preferably a plurality of sensors, from a group comprising gyro sensors, speed sensors, position sensors for systems such as GPS, Galileo, Beidou and / or Glonass, distance sensors, for example in the form of echo sounders or sun sensors, infrared sensors and inclination sensors.
- the position of the water sports device can be determined relative to a comparison point or comparison state or a change in state or position.
- the signals of the at least one sensor are particularly preferably processed in the control unit and control signals are formed by the control unit on the basis of these signals.
- the control unit can derive the measures necessary to correct the position or the change in position and output corresponding control signals in order to bring about automatic self-stabilization.
- a plurality of selectable driving profiles are preferably stored in the control unit.
- the stored driving profiles can differ, for example, in the extent and / or the time at which the automatic self-stabilization intervenes.
- a driving profile created for beginners can already intervene strongly with small deviations, while the automatic self-stabilization can be completely switched off for an experienced user.
- profiles are conceivable in which initially only short and slight corrections are made to inform the user of the need for correction, or profiles in which the corrections necessary for stabilization are delayed as far as possible and the maximum possible correction is only initiated when this is done an automatic self-stabilization can just about take place.
- the stored driving profiles can be selected depending on the wishes or skills of a user and each enable different driving experiences.
- the control unit is preferably designed to set different distances from the water surface in the operating position. These distances can be selected, for example, depending on the experience of the user. For beginners, the distance can be kept small, whereas experienced users can use the water sports equipment at a large distance from the water surface. Furthermore, the distance can be varied as a function of the position or the location of the water sports device or as a function of the driving situation. In this way, the distance can be reduced when cornering in order to improve the stability of the water sports device. The distance can, however, also be increased when cornering in order to prevent the float from coming into contact with the surface of the water when the water sports equipment is tilted.
- the distance can be increased when driving over a shoal in order to avoid damage to the holding device, wing device and / or propulsion device.
- the distance to the water surface can be reduced as far as possible in order to reduce the risk of injury to the user of the water sports device if the water sports device falls.
- the wing device is preferably designed to set different angles of attack of the one, preferably at least two wing, and / or at least one rudder.
- the rudder can be performed as an adjustable section of a wing or as a separate component of the wing device. This can alternatively or additionally stabilize the water Sports equipment.
- By adjusting the angle of attack the direction and / or amount of lift generated by the wings can be adjusted to whoever. This can be used to stabilize and / or control the water sports device.
- the angle of attack and thus the buoyancy can be reduced at high speeds of the water sports equipment so that the float is not lifted excessively above the water surface. At the same time, the flow resistance can be reduced and the speed increased.
- the angle of attack can be enlarged at low speeds in order to increase the lift.
- Different angles of attack of two opposing wings can cause a movement around an axis extending in the direction of travel or correct an unwanted movement from an equilibrium position and thus stabilize the water sports equipment. Cornering can be supported or initiated.
- a nod of the watercraft can be countered, for example, by waves or by shifting the user's weight on the watercraft to the front or back. Overall, automatic self-stabilization of the watercraft can thus be achieved alone or in conjunction with other measures.
- the control unit is preferably assigned at least one hand-held device which, in particular, has a thumb control.
- a thumb control means that the water Sports equipment controlled by movements of the thumb relative to the handheld device who can.
- the hand-held device preferably has a control element which can be moved in two directions and from which control signals can be derived in two directions, which are in particular related to the speed of the water sports device and cornering of the water sports device.
- the hand-held device can also have a 2D touchpad, in which movements of a finger, preferably the thumb of the user, are translated into corresponding control signals in two directions.
- the water sports device preferably has a dead man's device.
- a dead man device ensures that the water sports device switches off automatically when the user moves away from the water sports device, in particular if he falls off the water sports device.
- a token can be provided that the user attaches to his clothing and that is connected to the water sports device by cable or wirelessly. If the token is too far away from the water sports device, it switches off. This is done electronically in the case of wireless tokens, for example. With a wired token, the disconnection can also take place mechanically by breaking a contact by pulling the cable. The removal of the cable can also be electronically monitored and registered.
- the wing device can preferably be transferred, in particular retracted and extended and / or folded, from a rest and / or start position into an operating position below the floating body via the holding device.
- the wing device In the silence- and / or the starting position, the wing device is arranged closer to the float than in the operating position, for the benefit of greater compactness of the water sports device.
- the holding device is folded in and / or retracted in order to transfer the wing device into the rest and / or start position.
- the at least one first link for transferring the wing device is pivoted relative to the floating body by at least 20 °, preferably by at least 40 °, particularly preferably by at least 80 °.
- the wings in the rest and / or take-off position are not more than 50 cm apart from the float in a lateral view.
- the water sports device can be transported in a compact manner.
- this is particularly advantageous in an embodiment in which the wing device in the rest and / or start position is arranged directly below the float, preferably at least partially within the float, has already been climbed by a user in a shallow bank section and the water sports equipment in deeper What water can be transferred, where the wing device is then transferred to the operating position.
- Such a water sports device can also be used towards the end of its use after the holding device has been transferred into the rest and / or start position from an operating position to shallow sections of a body of water near the bank.
- Such a water sports device is particularly user-friendly.
- the water sports device and in particular the holding device preferably has a drive which is provided with an energy store and via which the wing device moves from a rest and / or start position into the operating position and / or can be transferred from the operating position to the rest and / or start position.
- the wing device can be retracted and / or extended and / or retracted and / or folded out.
- the water sports device can therefore be climbed and started near the beach or the shore, the wing arrangement being in a rest and / or start position. If the ground is sufficiently deep, the wing arrangement is then transferred to the operating position.
- the wing assembly When returning to the deployment site, the wing assembly is then returned to the rest and / or start position close to the float when the distance to the bottom becomes smaller.
- the drive is provided with a control unit which receives a signal triggered by a person using it and sends a control signal to the drive.
- the energy store is designed in particular to store the energy required for transferring the wing device.
- the memory preferably has a rechargeable battery for storing electrical energy, a tank for storing a pressurized fluid or a mechanical energy store such as a spring.
- the drive is accordingly preferably designed as an electromechanical or electro-pneumatic drive.
- the energy store is designed to feed a motor, wel- rather initiates the transfer of the wing device.
- the energy store releases stored energy directly, without an interposed motor, as mechanical or kinetic energy for transfer.
- the energy store is preferably coupled mechanically to the holding device on the one hand and coupled to a charging device such as a motor on the other hand, which is designed to charge the energy store in particular while the water sports device is in use.
- the physical effort to be achieved by the user to guide the wing device can be significantly reduced. Rather, only the drive is to be triggered for the transfer, which implements the transfer independently or at least reduces the manual effort required.
- the holding device preferably has at least one further link which is pivotably mounted on or in the floating body at one end and is pivotably arranged on the wing device at the other end.
- the first link and the further link are arranged one behind the other in the direction of travel, at least in the operating position of the Tragflä chenvorraum.
- at least one of the links is pivotably arranged on a receptacle for the at least one wing device or a receptacle of the wing device.
- the pivot axes are particularly aligned transversely to the direction of travel and, during operation, parallel to the water surface.
- the holding device can be designed as a parallelogram guide, which is particularly reliable and by which the wing device remains in particular also in the rest and / or start position below the floating body.
- the holding device preferably comprises further links which are each coupled to one of the two links and connect to one another at least in the operating position between the floating body and the wing device and transmit force to one another.
- the two first or further links are pivotable with respect to one another, as a result of which a toggle or folding mechanism can be produced as a holding device.
- two links forming a knee joint are arranged one behind the other in the direction of travel.
- At least one of the two links is at least one end displaceable relative to the floating body or relative to the Trag vomvorrich device.
- a scissors mechanism for transferring the support surface can be formed.
- at least one of the links is mounted such that it can pivot relative to the floating body and / or relative to the wing device about a pivot axis running parallel to the direction of travel.
- the holding device comprises a total of at least four links which are coupled to one another in the manner of a scissor car jack (the links opposite one another are in any case arranged in parallel).
- the wing device has telescopic handlebars which are mounted in or on one another so as to be longitudinally displaceable and via which the distance between the wing device and the floating body can be varied.
- the water sports device has at least one depth and / or proximity sensor which is connected to a control device designed to control the drive.
- the control device can also be part of the control unit, i.e. it can be formed by it, wherein the control unit can be of modular construction and / or can be arranged spatially distributed in the water sports device.
- the part of the control unit representing the control device of the drive can be arranged spatially in the vicinity of the drive, while the part of the control unit accessing the propulsion device can be arranged at a different position in the water sports device.
- the sensor is designed in particular to measure an immersion depth of the water sports device or a component thereof and / or to measure a distance between the water sports device and the (body of water) bottom.
- the sensor or one of the sensors is designed to measure a distance between the water sports equipment and an obstacle, in particular any other water sports equipment, preferably in the direction of travel.
- the drive is designed in particular in such a way that, depending on the sensor data, in particular while the water sports device is moving, the distance between the wing device and the float is preferably varied during travel, in particular the wing device is at least partially transferred.
- the sensor is arranged in particular on the wing device or the receptacle or the floating body.
- the sensor preferably has at least one ultrasonic transducer.
- a further development according to the invention of a water sports device comprises at least one travel status sensor for determining the distance of the float from the water surface.
- Depth and formerzu status sensors can also be formed by a single sensor or a single sensor arrangement.
- the driving condition sensor is a sensor unit that is preferably integrated into a handlebar of the holding device or arranged on this or it.
- it can be a sensor strip which extends along a handlebar of the holding device or is integrated in this over the handlebar length and operates on a capacitive basis. It can also be a sensor unit with a plurality of, in particular, capacitive sensors, which are arranged at a distance from one another along the holding device, for example in or on its handlebar. Alternatively or in addition, the distance can be determined by an ultrasonic sensor unit.
- the distance between the float and the water surface can be deduced by means of the control unit and, in particular in combination with other sensor data, for example about the speed of travel and / or the depth of the water, a desired stable driving state can be sought , for example by raising or lowering the float by setting one or more Tragflä surfaces or by pressing the holding device or by changing the driving speed.
- such a driving condition sensor which is arranged as a single sensor or as a sensor unit comprising a plurality of sensors in the holding device or on this, can also be used in holding devices rigidly arranged on the floating body, in which the holding device is both in the operating position as well as in the rest and / or start position, the wing device holds in the same position relative to the float.
- the driving condition sensor is laminated in, with the handlebar of the holding device having the sensor, preferably made of a fiber composite material, so that a stable structure of the handlebar is achieved on the one hand and, on the other hand, the integration of the driving condition sensor is simplified at the same time.
- tailor-made sensor structures can be applied directly to the fleece or fabric to be used, whereby the driving condition sensor is an integral part of the layer structure through the integration of the printed fleece or fabric into the layer structure and subsequent fiber composite production, e.g. through vacuum infusion Structure of the holding device is.
- a water sports device equipped with a travel condition sensor in particular in the form of a hydrofoil board, preferably has an optical display unit which extends in particular over at least half the length of the top of the float and which is designed in particular to display the distance of the float from the water surface, for which purpose the display unit has one or preferably a plurality of illuminants.
- the distance from the water surface can preferably correlate, for example, with the number and / or arrangement of the luminous points of the display unit.
- RGB diodes can be used for this.
- the number and / or color of the illuminants changes over the length of the float until a certain maximum number, for example, is reached in a desired state is activated by luminous dots.
- a certain, desired or optimal distance to the water surface can be identified with predominantly or exclusively green lighting means in the form of, for example, RGB LEDs or LED units.
- an indicator for a stable state ie the stability of the journey, can be formed by means of the display unit in the float.
- a stable state is in particular one in which slight shifts in weight or foot movements of less than 15 cm on a water sports device designed as a flydrofoilboard do not yet cause the person driving to fall by tilting and immersing the float, which was previously spaced from the water surface, into the water to lead.
- the energy store which in particular has a spring, can preferably be preloaded by means of a motor.
- the spring is designed as a torsion spring, the torsion axis of which coincides with the axis of rotation of a shaft mechanically coupled to the motor.
- the motor serves to pre-tension or torsion the energy store and thereby generates potential energy in it.
- the potential energy can be called up for at least partial transfer of the wing device without the need to use energy generated directly by the motor.
- the drive has, in particular, a transmission gear via which the motor is connected to the energy store.
- the transmission is designed in such a way that the quotient of the time required for the transfer and the time required for the associated pre-tensioning is ⁇ 1. That means the drive is designed in such a way that less time is required for the output of the amount of energy required for the transfer from the energy store than for the motor to build up the same amount of energy.
- the energy store has at least one spring which is directly connected or at least mechanically coupled to at least one handlebar of the folding device, such that the force of the spring can be used at least partially for positioning, in particular for aligning the handlebar.
- the energy store can preferably be preloaded in opposite directions by the motor and / or the transmission. As a result, both a transfer of the Tragflä device into the operating position and a transfer back from the operating position is at least facilitated by the drive.
- the drive preferably has a braking device which brakes the transfer or the energy output of the energy store and thus reduces the risk of injury and excessively abrupt influences on the movement of the water sports device.
- the propulsion device preferably has at least one shaftless and / or na benless propeller or impeller, in particular the impeller being arranged at least partially in a flow channel of a propulsion body connected to the environment via at least two openings.
- the propulsion device is therefore particularly suitable to be operated near the shore or beach, since one- on the one hand, the risk of injury is considerably reduced by the arrangement in a flow channel, on the other hand, any growth with algae or the like remains significantly less in the flow channel and in particular on the impeller.
- the motor has a hollow rotor with its inner side forming the flow channel and in particular mounted on its outer side facing away from the flow channel outside of the flow channel, carrying blades, and an outer stator arranged in a propulsion body housing.
- Essential functional parts of the engine are thus arranged around the cooling duct, so that, in contrast to a propeller provided with a hub or shaft, the excess heat generated over a larger surface into the flow duct and, in particular, a cylinder or torpedo-shaped propulsion body housing at the same time can also be better released to the outside world.
- a propulsion device which has an electric motor designed in particular as an internal rotor, this can therefore be designed particularly well to be streamlined.
- a particularly high degree of efficiency is achieved with simultaneously high performance.
- the impeller is particularly preferably formed by individual blades that are not directly connected to one another and are rotatably mounted. This allows the angle of incidence of the blades of the impeller to be changed during operation and adapted to the speed of the water sports equipment. This can accelerate and / or the achievable maximum speed can be increased compared to the use of an impeller with a constant angle of attack with the same engine power.
- the propulsion device and thus the water sports device can preferably be operated both in the rest and / or start position and in the operating position, so that different skill levels of any users can be taken into account.
- the propulsion device can in this case also be used in the rest and / or start position, for example in flat areas near the bank.
- the water sports device preferably comprises a propulsion device provided for propulsion of the same, the propulsion motor of which is arranged on the float body side and is drivingly connected to a propulsion element via an angular propulsion train.
- the wing device can be built in a more streamlined manner.
- a motor arranged in the float is subject to less strict installation space restrictions and can therefore be designed to be more maintenance-friendly, for example.
- the water sports device and in particular the propulsion device preferably have at least one sensor arrangement that can be used for position determination, where the control unit of the water sports device is designed to generate control signals based on signals from the sensor arrangement for the purpose of geofencing.
- a motorized drive can Propulsion device, movable means for generating an alignment of a water jet (e.g. a wing, motor, rudder blade, fin and / or nozzle), and / or retractable and extendable elements (a sword, a holding and / or carrying surface device), that affect the swimming properties of the water sports equipment, listen.
- a water jet e.g. a wing, motor, rudder blade, fin and / or nozzle
- retractable and extendable elements a sword, a holding and / or carrying surface device
- geofencing is understood to mean the automatic creation and triggering of control signals when leaving a predetermined area of the water being traveled on or when reaching a predetermined and then in particular blocked area of the water being traveled on.
- the sensor arrangement has sensors known for the respective purpose.
- a position determination according to the invention is carried out including the distance above the ground, in particular by means of sound-based methods and associated transmit and receive sensors, the signals of which are evaluated by the control unit.
- the control unit includes the usual means for controlling the water sports equipment and in particular the propulsion device, such as a man-machine interface, electrical and / or electronic data processing means and interfaces to any existing functional systems such as sensors.
- the control unit preferably has an interface to a communication unit or this is integrated directly into the control unit.
- the control unit is preferably arranged in a housing, but it can also be distributed to different Be arranged areas of the water sports equipment.
- a bus system is preferably used for communication between individual components of the water sports device.
- the position determination includes the determination of the geographical position, in particular including the longitude and latitude.
- control signals such as a reduction in the engine power of a propulsion device can be generated automatically when a predetermined area is left .
- the sensor arrangement and / or the control unit is preferably designed to determine the distance to a deployment location, so that, for example, when a maximum distance is reached, corresponding control signals are generated.
- the distance to a deployment site can be determined, for example, via the position determination and the definition of the deployment site purely locally on the part of the water sports device; it can also take place via bidirectional communication with communication means available on the water sports device side and on the side of the deployment site, see above that, for example, the distance can be determined via the transit times of the communication signals or their signal strength.
- an external control device which is designed to transmit control signals generated on the basis of the position of the water sports device to the control unit.
- a computer Aided control device comprises the necessary means of communication on the part of the water sports device and the external control device, for example on the bank.
- the control device can, for example, also be present on a ship from which the water sports device starts.
- the no-travel zone can preferably be generated dynamically on the basis of the position of the ship, for example as a circle around the ship along the water surface with a diameter of 300 m.
- the control unit is advantageously designed for communication with a control unit of a further propulsion device of the same or of a further water sports device.
- a teacher / student mode or a tandem mode for synchronous drives can be implemented.
- Tracking modes can also be implemented, in which case, for example, the achievement of a minimum, in particular predeterminable, distance is assessed as a success and the journey of the water sports equipment is slowed down.
- the speeds of the two or more water sports devices can also be matched to one another or can be specified in areas.
- the control unit is designed to generate control signals for one or both propulsion devices on the basis of the position, control and / or driving signals / data transmitted by the further water sports device.
- the Water sports device has two propulsion devices, a person area being present in a plan view between the two propulsion devices.
- the person area is understood to mean that area that is available for people to stay during the operation of the water sports device and where one or more people can stand, kneel, lie and / or sit, for example.
- FIG. 2 shows the object according to FIG. 1 in a view from the rear
- FIG. 3a shows a propulsion device of an object according to the invention to FIG. 3c
- FIG. 4a shows an alternative propulsion device of an object according to the invention up to FIG. 4c
- FIG. 5a shows a further alternative propulsion device of an object according to the invention up to FIG. 5c
- Fig. 6 shows two objects according to the invention in a further one
- FIG. 8 a shows a further object according to the invention in one and FIG. 8 b a perspective view.
- FIG. 9 shows the object according to FIG. 1 in an operational situation
- FIGS. 11 and 12 show a further exemplary embodiment according to the invention.
- the water sports device 2 is designed for self-stabilization. This is done via a control unit 70 provided for this purpose. This generates control signals for actuating means.
- These adjusting means can be pivotable arranged airfoils 16 of the airfoil device 6 (FIG. 7) or pivotably arranged sections of the airfoils 16 (FIG. 8) act.
- a vector nozzle 92 (Fig. 1, Fig. 4), a pivoting bar arranged propeller 64, preferably at an outlet opening 60 of a propulsion device 50 arranged pivotable guide vanes 94 (Fig. 3), and / or nozzles 96, which can be arranged both stationary or pivotable (Fig. 5).
- the embodiment of the water sports device 2 according to the invention shown in FIG. 1 comprises a float 4 which is connected to a folding device 8 via a Trag lakevorrich device 6.
- the folding device 8 comprises two links 10, which are articulated at one end on the floating body 4 and articulated at the other end on the wing device 8.
- the front control arms 10, which are arranged on a common shaft in the direction of travel F, are moved via an internal drive 12, shown in dashed lines.
- the rear links 10 in the direction of travel F are positively guided via the coupling by means of the propulsion device 50 of the wing device 6. In this respect, only a single, adequately dimensioned drive 12 is necessary.
- the propulsion device 50 is formed in the present case with a hubless impeller 52 (FIG. 2).
- the associated motor has a rotor, the inner side of which forms the flow channel and is correspondingly hollow, the blades 54 being attached to the inner side of the rotor.
- the rotor is on its outside facing away from the flow channel outside of the flow channel Gela Gert and runs in a stator which is arranged in a propulsion body housing 56.
- a vector nozzle 92 is arranged at the outlet 60 of the propulsion device 50.
- a control unit 70 generates control commands for the vector nozzle 92 with which a thrust vector of the propulsion device 50 can be changed. Self-stabilization of the water sports device or a system comprising the water sports device and its users can be achieved in this way. To this end, the control unit 70 can evaluate signals from a sensor arrangement 74.
- the handlebars 10 are flow-optimized with a smaller extension in the direction of travel F seeks than transversely thereto (Fig. 1 and 2).
- the inflow surfaces are rounded and the cross-section of the links is especially designed like a drop or wing.
- the propulsion device comprises the propulsion body housing 56, which is fixed in two receptacles 62, with an internal propulsion energy storage device, the motor designed as an internal runner, including a hubless impeller, and a control unit 70, which is designed with a man-machine interface for operating the propulsion device.
- Corresponding line means lead, for example, through the handlebars 10 into the float 4 and are transmitted from there, for example wirelessly, to a handheld device 90 of the user 86 operating the water sports device 2 (FIG. 6).
- the transfer of the wing device 6 with its wing 16 from the operating position shown into a start and / or rest position of the wing device 6 closer to the floating body 4 can be released or triggered.
- the transfer can be effected automatically, for example, by control signals from a control unit 70 arranged in the float 4 and therefore only shown in dashed lines based on its evaluation in the context of geofing (FIG. 1).
- the control unit 70 receives signals from a sensor arrangement 74 via a signal line 72 shown in dotted lines.
- control signals are generated when an internally or externally specified area in which the water sports device 2 is permitted is left. Only when a predetermined delimitation 83 of an area of use 82 of the water sports device 2 is left does the control unit 70 automatically turn on Control signal generated (see. Fig. 9).
- the sensor arrangement is designed, for example, to record GPS signals or other localization signals and / or the distance above the ground by means of a sound signal.
- the underside of the floating body 4 has corresponding transmitting and receiving units 76. The se are also again coupled to the control unit 70 via a corresponding signal line 72.
- the foil board shown in FIGS. 1 and 2 can then be transferred back to its place of use in a controlled manner by shifting weight.
- the foil board can also be designed in accordance with FIG. 9 to determine the distance from a deployment location 78. For this purpose, for example, the transmission duration of a time-coded signal between a central control device 80 assigned to the deployment location 78 and the water sports device 2 is determined.
- a control device 80 can also be used by a user with corresponding access rights to exercise further control options, in particular when the water sports device leaves an application area 82 beyond its limit 83.
- the sensor arrangement 74 can also be supplemented by a communication unit, via which the control units 70 of two water sports devices 2 that are correspondingly in a synchronous mode can communicate with one another, indicated by the signals 84 shown with several curved lines.
- a person 86 qualified as an instructor can, for example, use the handheld device 90 connected wirelessly to the control unit 70 to specify driving signals to a learner 88, which can be used, for example, to initiate cornering by folding down the movable wings 16 of the Trag lakevor direction 6 lead.
- the use of the water sports equipment 2 is limited to an area 82 defined by geofencing (see FIG. 9) by the appropriately programmable control unit 70, which is not shown here.
- Fig. 3 shows a propulsion device 50 of a water sports device according to the invention 2 in one embodiment.
- the propulsion device 50 has an impeller 52.
- Guide blades 94 are arranged at the end of the propulsion device 50.
- the guide vanes 94 form a cross, the arms of which are arranged rotated by 90 degrees with respect to one another.
- the guide vanes 94 are pivotable about pivot axes, two guide vanes being arranged on each pivot axis.
- the guide vanes can be pivoted about the pivot axis, the horizontally arranged guide vanes 94 from left to right and vice versa and the horizontally arranged guide vanes 94 from top to bottom and vice versa.
- the guide vanes 94 are shown in a neutral position.
- the vertically arranged guide vanes 94 are pivoted to the right and the horizontally arranged guide vanes 94 downwards and in Fig. 3 the horizontally arranged guide vanes are pivoted upwards.
- a torque about a longitudinal axis of the Vortriebsvor device 50 can be generated.
- Fig. 4 shows an alternative embodiment of a corresponding Vortriebsvorrich device 50 with an impeller 52, which is equipped with a vector nozzle 92.
- the drive jet of the propulsion device 50 the amount of water ejected to the rear, can be directed via the vector nozzle 92.
- the vector nozzle 92 is shown in a neutral position.
- the vector nozzle 92 is shown wasted to the left ver and wasted in Fig. 4c downward.
- a directed force can be exerted on the propulsion device 50 and thus on the water sports device 2.
- FIG. 5 shows a further alternative embodiment of the propulsion device 50 with a plurality of nozzles 96.
- These nozzles 96 can either be designed as vector nozzles 92 and their position can therefore be changed.
- the drive device can also have a plurality of nozzles 96 which are fixed in different directions. Control of the water sports device can be achieved in that the drive jet ejected by certain nozzles 96 is regulated, for example, by valves. The drive jet is then ejected, for example, only through certain nozzles 96 or the proportion of the drive jet that exits through certain nozzles 96 can be changed accordingly.
- FIG. 5a shows a propulsion device 50 with five nozzles 96 as vector nozzles 92.
- these nozzles 96 are shown in a position that is wasted down to the left.
- 5c shows nozzles 96 pointing in different directions. This can either be vector nozzles 92 which are controlled independently or nozzles 96 which cannot be changed and in which only the portion of the drive jet exiting through a respective nozzle can be changed.
- Fig. 6 shows two water sports equipment, in which a self-stabilization can alternatively or additionally take place by the wing device 6 with pivotally angeord designated wings 16. Signals for adjusting the adjustable wings 16 can thus be transmitted via the control unit 70 and the wings 16 adjusted.
- FIG. 7 and 8 show two water sports devices 2 with alternative configurations of the wing device 6 and the wing 16.
- the wing device 6 is arranged on the propulsion device 50.
- the individual wings are arranged directly on the propulsion device 7 pivotable.
- Fig. 7a shows the wing 16 in a neutral position.
- Fig. 7b the wings 16 are pivoted downward and at the same time the right wing 16 in the direction of travel of the water sports device 2 pivoted against the propulsion device ver.
- Fig. 7c shows the wings in a transport position or rest position.
- the control unit 70 of the water sports device 2 can control the individual wings 16 in such a way that an automatic self-stabilization of the water sports device 2 takes place in the water.
- FIG. 8 shows an alternative embodiment of the wing device 6.
- a front and a rear wing are arranged on the propulsion device 50, which at least partially forms the wings.
- Pivotable tips of the aerofoils 16, which can be pivoted into various positions, are arranged on each of the ends of these rigid wings. This also makes it possible to stabilize the water sports device 2 by adjusting the wings 16, in FIG. 8 only the pivotably arranged tips of the wings 16 can be achieved.
- the propulsion device 50 has a motor 200 designed as an internal rotor with a stator 202 and a rotor 204.
- the rotor 204 On its outer side directed away from the flow channel, the rotor 204 is supported by two radial bearings 206, which in the present case are designed as magnetic bearings, and an axial bearing 208, which in the present case is also designed as a magnetic bearing.
- an impeller ring 210 is arranged, which has pivotable blade mounts 211.
- a blade 54 is arranged on each of the blade runners 211.
- the propulsion device 50 has an adjusting ring 212 arranged coaxially to the rotor 204 or the impeller ring 210.
- the adjusting ring 212 is also hollow and mounted on its outside directed away from the Strö flow channel.
- the distance between adjusting ring 212 and impeller ring 210 in the axial direction can be changed here. In the present case, this is done by means of an active magnetic axial positioning in a magnetic one Bearing 214 of the adjusting ring 212 reached.
- the adjusting ring 212 is via individual adjusting pins 216 in engagement with cylindrical outer sections of the blade mounts 211.
- a plurality of capacitive sensors 36 for forming a driving condition sensor 32 are arranged along a handlebar 10 of the holding device 8 (FIGS. 11 and 12). These he stretch evenly over a large part of the handlebar 10 along its longitudinal extent and depending on whether they are arranged above or below a water surface 34 indicated by dashed lines, corresponding data to a control unit preferably arranged in the float 4.
- a distance between the floating body 4 and the water surface 34 can be determined in this, whereupon the control unit can adjust, for example, the thrust of the propulsion device 50, which is integrated in the handlebar 10, or an angular position of a wing 16 in order to provide additional information in the event of undesired conditions Thrust vector control to achieve a more stable driving state and to stabilize the water sports equipment.
- the exemplary embodiment of FIGS. 11 and 12 also has an optical display unit 31 integrated in the floating body, which displays the distance between the floating body 4 and the surface of the water.
- the display unit 31 comprises a plurality of multi-colored LED units 33 laminated in, so that the distance from the water surface 34 can be mapped via the number and / or wavelength of the luminous LED units 33.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Toys (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019129572.6A DE102019129572A1 (de) | 2019-11-01 | 2019-11-01 | Wassersportgerät |
| PCT/EP2020/080695 WO2021084126A1 (de) | 2019-11-01 | 2020-11-02 | Wassersportgerät |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4051570A1 true EP4051570A1 (de) | 2022-09-07 |
| EP4051570C0 EP4051570C0 (de) | 2025-12-31 |
| EP4051570B1 EP4051570B1 (de) | 2025-12-31 |
Family
ID=73544124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20811528.7A Active EP4051570B1 (de) | 2019-11-01 | 2020-11-02 | Wassersportgerät |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220379999A1 (de) |
| EP (1) | EP4051570B1 (de) |
| CA (1) | CA3156767A1 (de) |
| DE (1) | DE102019129572A1 (de) |
| WO (1) | WO2021084126A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4344428A4 (de) * | 2021-07-06 | 2025-06-11 | Hagen, Terry, Lee | Lenkbares tragflügelwasserfahrzeug |
| US20230391424A1 (en) * | 2022-06-03 | 2023-12-07 | Square One Distribution, Inc. | Attachable-and-releaseable (swappable) fin for sport board, and adjustable mast for foiling systems |
| US20240317370A1 (en) * | 2023-03-20 | 2024-09-26 | Kai Concepts, LLC | Watercraft ride assist method and system |
| DE102023117038A1 (de) * | 2023-06-28 | 2025-01-02 | Jetworx Gmbh | Düsenvorrichtung für ein Jetantriebsmodul eines Wasserfahrzeugs, modulares Wasserfahrzeug, Betriebsverfahren für ein Wasserfahrzeug, Computerprogrammprodukt zum Steuern eines Wasserfahrzeugs |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202011051071U1 (de) * | 2011-08-24 | 2011-11-09 | Sashay Gmbh | Steuerbares Surfbrett |
| US9718521B2 (en) * | 2012-11-14 | 2017-08-01 | Steven John Derrah | Drive-N-glide surfboard (jet drive) |
| US10597118B2 (en) | 2016-09-12 | 2020-03-24 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propeller system |
| JP6698562B2 (ja) * | 2017-02-13 | 2020-05-27 | ヤンマー株式会社 | 水上乗り物の水中推進装置 |
| US10099754B2 (en) * | 2017-08-22 | 2018-10-16 | Yujet International Limited | Motorized hydrofoil device |
| WO2019063749A1 (de) * | 2017-09-29 | 2019-04-04 | Christian Gradolph | Wasserfahrzeug zum befördern wenigstens einer person auf einer wasseroberfläche |
| US10486771B2 (en) * | 2017-11-08 | 2019-11-26 | Yujet International Corporation Limited | Motorized hydrofoil device |
| CN208760860U (zh) * | 2018-08-30 | 2019-04-19 | 深圳市苇渡智能科技有限公司 | 一种冲浪装置 |
| CN208715431U (zh) * | 2018-09-19 | 2019-04-09 | 深圳市苇渡智能科技有限公司 | 水面航行器和水面自动装置 |
| US10994815B2 (en) * | 2018-12-04 | 2021-05-04 | Shelby Jean Wengreen | Self-balancing surfboard |
| CN109976226B (zh) * | 2019-04-19 | 2020-12-11 | 深圳市蔚蓝方舟科技有限公司 | 水上动力滑板的监测及显示系统 |
-
2019
- 2019-11-01 DE DE102019129572.6A patent/DE102019129572A1/de active Pending
-
2020
- 2020-11-02 US US17/755,557 patent/US20220379999A1/en active Pending
- 2020-11-02 EP EP20811528.7A patent/EP4051570B1/de active Active
- 2020-11-02 WO PCT/EP2020/080695 patent/WO2021084126A1/de not_active Ceased
- 2020-11-02 CA CA3156767A patent/CA3156767A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA3156767A1 (en) | 2021-05-06 |
| EP4051570C0 (de) | 2025-12-31 |
| WO2021084126A1 (de) | 2021-05-06 |
| US20220379999A1 (en) | 2022-12-01 |
| EP4051570B1 (de) | 2025-12-31 |
| DE102019129572A1 (de) | 2021-05-06 |
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